Yes. An NRI can generally file a property case in India even while living abroad. They may appoint a trusted person in India through a properly executed Power of Attorney (POA) to represent them and handle court-related formalities. The Registration Act recognizes a POA executed by a person residing outside India when it is properly authenticated before a Notary Public, Indian Consul/Vice-Consul, or other authorized authority.
The NRI should usually consult an advocate in the state where the property is located, prepare the required documents, execute the POA according to the applicable requirements, and provide property and ownership records. Depending on the case, the court may also require the NRI's personal appearance or evidence, although representation through an authorized person may be possible in many proceedings.
The exact procedure can vary depending on the type of property dispute and the court's requirements.